 body{
 	background: url(../img/bg.png) center no-repeat;
 } 

 html , body { 
	width:720px; 
	height:100%; 
	position:relative;
	margin: 0 auto; 
}
.conbox{
	width: 100%;
	position: absolute;
	top: 50%;
	margin-top: -540px;
}
.conbox img{
	display: block;
}
.conbox #title01{
	width: 447px;
	height: 64px;
	margin: 0 auto;
}
.conbox #title02{
	width: 720px;
	height: 326px;
	margin: 60px auto 0;
}
.conbox #home_btn{
	display: block;
	width: 245px;
	height: 80px;
	margin: 0 auto;
}
.conbox #img_logo{
	width: 402px;
	height: 415px;
	margin: 70px auto 0;
}